Data as of Nov 8, 2026
204.9.128.0/24
No anonymizer space · no proxy exits in 30 daysJohns Hopkins University Applied Physics Laboratory
Network & registry
Origin network
AS77
US
- Name
- Johns Hopkins University Applied Physics Laboratory
- Type
- Education
- Registered
- May 5, 1986
- Domain
- jhuapl.edu
- Website
- jhuapl.edu
- Industry
- Colleges, Universities, and Professional Schools
- Spamhaus ASN-DROP
- not listed
Routing timeline
Who has announced this prefix
Summary
Routing history
- Pattern
- Stable
- First seen
- Dec 2020
- Current origin since
- Dec 2020 · 5.9 yr
- Origin networks
- 1
RPKI
Route origin authorizations
| ROA prefix | ASN | Max len | Anchor | Verdict |
|---|---|---|---|---|
| 204.9.128.0/24 | AS77 | /24 | ARIN | RPKI valid |
| 204.9.128.0/21 | AS77 | /21 | ARIN | Too specific |
IRR
Route objects on the exact prefix
| Origin | Registry | Description | Maintainer | Modified |
|---|---|---|---|---|
| AS77 | RADB | Proxy-registered route object for JHU/APL | MAINT-AS10886 | Nov 13, 2023 |
Whois
Registration for this announcement
- Range
- 204.
9. 128. 0/ 21 - Netname
- JHUAPL-EXT
- Registrant
- Johns Hopkins University Applied Physics Laboratory
- Organization
- Johns Hopkins University Applied Physics Laboratory (JHUAPL)
- Org address
- 11100 Johns Hopkins Road, Laurel, MD, 20723
- Org country
- US
- Type
- Direct Allocation
- Handle
- NET-204-9-128-0-1
- Parent
- NET-204-0-0-0-0
- Created
- Oct 11, 2004
- RIR
- ARIN
- Country
- US
- Delegated
- Oct 11, 2004
- Status
- assigned
Report abuse
Abuse contact
- nic-contact@
jhuapl. edu - Name
- Network Operations Center
- Phone
- +1-240-228-6016
- Handle
- ZJ20-ARIN